JPS5768262A - As-cast high chromium type cast iron double centrifugal cast roll - Google Patents

As-cast high chromium type cast iron double centrifugal cast roll

Info

Publication number
JPS5768262A
JPS5768262A JP14195480A JP14195480A JPS5768262A JP S5768262 A JPS5768262 A JP S5768262A JP 14195480 A JP14195480 A JP 14195480A JP 14195480 A JP14195480 A JP 14195480A JP S5768262 A JPS5768262 A JP S5768262A
Authority
JP
Japan
Prior art keywords
cast
roll
abrasion resistance
chromium type
amt
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP14195480A
Other languages
Japanese (ja)
Inventor
Takashi Oguro
Shuji Ono
Shintaro Matsuo
Masato Ueda
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy Industries Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Priority to JP14195480A priority Critical patent/JPS5768262A/en
Publication of JPS5768262A publication Critical patent/JPS5768262A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D19/00—Casting in, on, or around objects which form part of the product
    • B22D19/16—Casting in, on, or around objects which form part of the product for making compound objects cast of two or more different metals, e.g. for making rolls for rolling mills

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)

Abstract

PURPOSE:To obtain a roll of a low cost and high abrasion resistance for mills by specifying the composition of a high chromium type cast iron for the outside layer material of a double centrifugal cast roll. CONSTITUTION:An outside layer material of high abrasion resistance of 3.0-6.0 C, 0.4-1.5 Si, 0.4-1.5 Mn, 20-25 Cr, 3.0-8.0 Nb, 3.0-6.0 Mo by weight %, and the balance Fe is cast. Thence, an inside layer material of cast iron of high machineability is cast, whereby the double centrifugal cast roll used in an as-cast state is obtained. The abrasion resistance of the high chromium type cast iron is affected by the amt. and hardness of precipitated carbide and the hardness of the base structure. Here, the amt. of carbide precipitation is increased by increasing the contents of Cr and C rather high, but an amt. of austenite of poor abrasion resistance increases in the grond structure. In order to decrease this and to recipitate NbC, Mo2C of hardness higher than that of (Fe, Cr)7C3, Nb and Mo are added. These are required to be above the lower limits, but if they exceed the upper limits, ductility and toughness degrade with Nb and ductility degrades considerably with Mo other than costs.
JP14195480A 1980-10-13 1980-10-13 As-cast high chromium type cast iron double centrifugal cast roll Pending JPS5768262A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14195480A JPS5768262A (en) 1980-10-13 1980-10-13 As-cast high chromium type cast iron double centrifugal cast roll

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14195480A JPS5768262A (en) 1980-10-13 1980-10-13 As-cast high chromium type cast iron double centrifugal cast roll

Publications (1)

Publication Number Publication Date
JPS5768262A true JPS5768262A (en) 1982-04-26

Family

ID=15303985

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14195480A Pending JPS5768262A (en) 1980-10-13 1980-10-13 As-cast high chromium type cast iron double centrifugal cast roll

Country Status (1)

Country Link
JP (1) JPS5768262A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996005005A1 (en) * 1994-08-17 1996-02-22 Magotteaux International S.A. Bimetal foundery part used as a wear part in vertical crushers, fabrication method and utilisation in vertical crushers
US5855700A (en) * 1997-01-22 1999-01-05 Magotteaux International S.A. Bimetallic casting serving as a wear piece in vertical crushing mills and its method of manufacture
CN102211163A (en) * 2011-06-03 2011-10-12 浙江台州金陶机械制造有限公司 Production process of sliced type centrifugal cast iron piston ring
CN104525911A (en) * 2014-12-08 2015-04-22 薛亚红 Manufacturing method of cast iron alloy roller ring with high abrasion resistance

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996005005A1 (en) * 1994-08-17 1996-02-22 Magotteaux International S.A. Bimetal foundery part used as a wear part in vertical crushers, fabrication method and utilisation in vertical crushers
US5855700A (en) * 1997-01-22 1999-01-05 Magotteaux International S.A. Bimetallic casting serving as a wear piece in vertical crushing mills and its method of manufacture
CN102211163A (en) * 2011-06-03 2011-10-12 浙江台州金陶机械制造有限公司 Production process of sliced type centrifugal cast iron piston ring
CN102211163B (en) * 2011-06-03 2015-03-11 浙江台州金陶机械制造有限公司 Production process of sliced type centrifugal cast iron piston ring
CN104525911A (en) * 2014-12-08 2015-04-22 薛亚红 Manufacturing method of cast iron alloy roller ring with high abrasion resistance

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